Software: Practice and Experience 41 (10): 1073-1103 (2011) |
Bo Jiang 2 , T.H. Tse 2 , Wolfgang Grieskamp 3 , Nicolas Kicillof 3 , Yiming Cao 3 , Xiang Li 3 , and W.K. Chan 4
[paper from Wiley Online Library | technical report TR-2011-07]
ABSTRACT |
Model-based testing helps test engineers automate their testing tasks so that they are more cost-effective.
When the model is changed owing to the evolution of the specification, it is important to maintain the test suites up to date for regression testing.
A complete regeneration of the whole test suite from the new model, although inefficient, is still frequently used in the industry, including Microsoft To handle specification evolution effectively, we propose a test case reusability analysis technique to identify reusable test cases of the original test suite based on graph analysis.
We also develop a test suite augmentation technique to generate new test cases to cover the change-related parts of the new model.
The experiment on four large protocol document testing projects shows that our technique can successfully identify a high percentage of reusable test cases and generate low-redundancy new test cases.
When compared with a completely regeneration of the whole test suite, our technique significantly reduces regression testing time while maintaining the stability of requirement coverage over the evolution of requirements specifications.
Keywords: model-based testing; regression testing; protocol document testing |
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